Gas desiccation.



J. 1. M. PATITZ.

` GAS DBSICGATION.

` APPLICATION FILED DEO. 21, 190l v 1,1 1 3,682. vPatented 0@1;.13,1914.

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Application filed Deceinher 2l, @QUEL Serial t'c, 168,441

' blast is approximately tir-teen pounds gage.

The object of' the invention is to remove moisture 'from the air Withoutnecessitating a high compression thereof thus reducing the tendens;7 ol'having leaky joints or bursting pipes in theY apparatus.`

it clear conception of the invention can he obtained by referring to theaccompanying drawing which represents the invention applied to an oirdrying system.

The prime inover tl of the compressors l., 5, may he a turbine or anysuitalole engine,

hy ineens of the linkage 6l to a compressor l. 'lhelinkage 6l is eitherashat, as when turbines are used, or a piston rod and connecting rod orrods when reciprocating machinery is used. This compressor L-having itssuction through pipe l0, compresses atmospheric air up to sa7 'ten tofifteen pounds gage pressure, discharging the coniressed air through thepipe l2 which leads to the surface cooler 2. ln this cooler 2 the heatdus to compression in the compressor l is carried oil' hy means of anysuitable medium, such as water." The coolingwater entersthe cooler 2through the pipe 2l and passes through the cooling tubes or pipes 20 andis discharged through the pipe 22. During its passage through the tulves2t), the cooling' medium absorbs the heat ol2 oo nlpression from thecompressedair which surrounds the tubes 20, thus leaving the dischargedcompressed air et approximately the saine temperature as that of theinlet cooling medium. The compressed air from the cooler passes throughthe pipe 23 into the expanding' engine 3 which is direct connected tothe linkage 6l so that during the operation ot expanding the compressed,

Speccation of letters latent.l

either steam, gas, hydraulic or elem tric. The rime mover 6 is directconnectedresented oct; ,inra

air. to atmospheric pressure the expanding engine 3 will assist theprnie mover 6 in' performing the work of driving the com#v pressor lhereinabove mentioned and the compressor 5 hereinafter mentioned. ,ses60 the air expands to atmospheric pressure in the engine 3, it depositsmost of its moisture in the form of Water, frost or snorv in the snowpockets Il, having the door 8 for re'- Inoval of snow. vThis depositionof the as moisture is facilitated by the abstraction of heat in thecooler before expansion'in the engine 3.. The expansion of air in theengine 3 and the translation of heat thereoftt'? into work necessarilycauses a: decrease in 70 temperature which :will he' sutcient to liquefyor freeze the contained moisture. After the deposit of the moisture inth@ forniV of water or snow in the snow pocket el, the air atatmospheric pressure @am 15 through .the ipe t5 'into a secondcompressor 5, 'also direct connected to linkage *6% in which it iscompressed to the required 'for use.

lin hlast furnace application, the air ailier 8G leavin the compressor 5through the pipe 15,is cated up to the required temperature, Vlhenapplied to blast furnace use, the essential point is not so muchthe-removal of moisture as the removal of moisture to 36 'leave the airwith as nearly as possible constant percentage "lele--moisture.` lf itwere economically possible, entire removal et moisture would'loe themost desirehle con-U dition. A

Other uses may be oundofr sir constant in amount of moisture.

It should he understood tliet it is not desire/d to he limited to 'theenact details of `constructicm shown and descrihedfor obvi- 95 ousmodifications will occur to a person skilled inthe art. i

lt is claimed and desired to secure by Letters Patent,- y i '1. Theprocess of desiccating ges by coml0 pressing the gas, cooling thecompressed gas, expanding the cooled gas to about atmospheric pressure,removing the condensed moisture and compressing the desiccated gas asdesired for use. 105- 2. The process of desiccating gas for use aboveatmospheric pressure, by compressing the gas, cooliing,r thecompressedgas,.erpand. i ing the cooled gas to a'pressure at or alloro atlnospTlierre pressure, removing the con.

dense@ moisture anc compss'ng the desieeated gas as desired for use.' vl The vroc'ess of desiccaing by com pressmg t 1e gas,` -coohng thecompressed gas,

@Xpmxdngthe cooled gas to about atmosphero'pressurea utilizing the Workof oompfression during Io n'of the 'two preceding stepsof the processremoving the condensed 'mosure, and compressing the fdesccated eeflhe@rooms o-desiceaxsing gas foruse shove. aism'osphero pressure bycompressing insges, cooling vme compressed gas, ex-

emesse pnnding the cooled gas to u pressure at or above atmospherxepressure, utlhzmg the -work of compression during one of the two JGHANNF. M. PATITZ.

Witnesses: l

G. F. DE THIN, C. (hun:A

